Re: [Pharo-users] accessing local/instance variables with metalinks

Dec. 12, 2016

      Hello,

Not yet. It should be easy to add if we find a good API for itâ¦

I will work on it this week (I have blocked some time for RF related hacking).

e.g I think we have to extend the syntax for reifications to use classes.

something like:

arguments: {RFTempReification named: #trachelCanvas};

The current symbols then would be the same as using

RFReification named: #object

But subclasses can be used directly and parametrized.

	Marcus
...
On 5 Dec 2016, at 20:42, Peter Uhnak <i.uhnak@gmail.com> wrote:
Hi,
what is the best way to access variables from within a metalink?
for example I have a message send `surface clear` and I want to change it to `surface clear: trachelCanvas color`.
I can use #instVarNamed:
```
MetaLink new
  metaObject: [ :object |
      (object instVarNamed: #surface) clear: (object instVarNamed: #trachelCanvas) color.
  ];
  selector: #value:;
  arguments: #(object);
  control: #instead.
```
but the above isn't exactly nice, plus it wouldn't work with temporary variables.
Thanks,
Peter

Re: [Pharo-users] accessing local/instance variables with metalinks

Marcus Denker